My cell phone has been acting up over the last few days. When I make or receive a call every now and then (not every time), I'm unable to hear the party on the other end of the line - although they can hear me. And since I use the phone primarily for business calls, I sort of need it to not do that. I was fumbling through the settings, and saw that there was a "master reset" option. That sounded worth a try, so I hit it. After backing up all my settings, numbers, contacts, etc. would be lost, I went ahead and wiped it clean. When it ...